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ACA Trending: Jul 2026

Click an image to enlarge it. The slopes are in Mag / day.

ACIS
Slope: -5.654e-03 STD: 4.736e-02

Slope: 8.282e-04 STD: 4.556e-02

Slope: -5.770e-03 STD: 6.279e-02
 

Slope: -2.126e-03 STD: 4.634e-02

Slope: 7.850e-04 STD: 4.205e-02

Slope: -8.888e-03 STD: 4.328e-02
 
HRCI
Slope: nan STD: nan

Slope: nan STD: nan

Slope: nan STD: nan

Slope: nan STD: nan
HRCS
Slope: nan STD: nan

Slope: nan STD: nan

Slope: nan STD: nan

Slope: nan STD: nan
IDID StringMagnitudeData Quality (%)Total Data
AverageMinMaxGoodMarginalBad
1 ACIS-1 7.233 6.773 7.348 100 0 0 23
2 ACIS-2 7.084 6.901 7.201 100 0 0 11
3 ACIS-3 7.378 7.176 7.492 100 0 0 16
4 ACIS-4 7.187 6.796 7.309 100 0 0 18
5 ACIS-5 7.200 5.319 7.326 100 0 0 33
6 ACIS-6 7.240 6.998 7.346 100 0 0 13
7 HRC-I-1 0.000 0.000 0.000 0 0 0 0
8 HRC-I-2 0.000 0.000 0.000 0 0 0 0
9 HRC-I-3 0.000 0.000 0.000 0 0 0 0
10 HRC-I-4 0.000 0.000 0.000 0 0 0 0
11 HRC-S-1 0.000 0.000 0.000 0 0 0 0
12 HRC-S-2 0.000 0.000 0.000 0 0 0 0
13 HRC-S-3 0.000 0.000 0.000 0 0 0 0
14 HRC-S-4 0.000 0.000 0.000 0 0 0 0

Level 1 Slot Trending: Jul 2026

Click an image to enlarge it. The slopes are per day.

SlotPos_ErrDelta MagnitudeAngyneaAngznea
0
Slope: nan STD: 7.677e-02

Slope: nan STD: 7.677e-02

Slope: 1.399e-05 STD: -7.018e-05

Slope: -7.018e-05 STD: 7.790e-04
1
Slope: nan STD: 5.666e-02

Slope: nan STD: 5.666e-02

Slope: -1.412e-04 STD: -2.374e-04

Slope: -2.374e-04 STD: 1.164e-03
2
Slope: nan STD: 6.300e-02

Slope: nan STD: 6.300e-02

Slope: -7.363e-05 STD: -1.486e-04

Slope: -1.486e-04 STD: 6.867e-04
3
Slope: -1.076e-03 STD: 2.375e-02

Slope: -1.076e-03 STD: 2.375e-02

Slope: -3.255e-04 STD: 2.014e-04

Slope: 2.014e-04 STD: 6.549e-03
4
Slope: -1.759e-04 STD: 1.887e-02

Slope: -1.759e-04 STD: 1.887e-02

Slope: -8.320e-04 STD: -7.161e-04

Slope: -7.161e-04 STD: 1.163e-02
5
Slope: -3.051e-04 STD: 9.189e-03

Slope: -3.051e-04 STD: 9.189e-03

Slope: -1.332e-03 STD: -1.308e-03

Slope: -1.308e-03 STD: 1.111e-02
6
Slope: 1.848e-03 STD: 1.546e-02

Slope: 1.848e-03 STD: 1.546e-02

Slope: -1.429e-03 STD: -1.495e-03

Slope: -1.495e-03 STD: 1.174e-02
7
Slope: 8.327e-04 STD: 1.342e-02

Slope: 8.327e-04 STD: 1.342e-02

Slope: -3.423e-03 STD: -2.839e-03

Slope: -2.839e-03 STD: 1.852e-02

Note

pos_err: ((ra_err*cos(dec))^2 + dec_err^2)^0.5
diff: mag_aca - mag_aca_avg
slope: slope agaist time (sec)
std: standard deviation of the data

When looking at Guide Stars

slotrms_ra_err (deg)rms_dec_err (deg) rms_delta_mag (marcsec)number avg_angynea (arcsec)avg_angznea (arcsec) number_nea goodmarginalbad
00.000e+000.000e+000.000e+00 00.000e+000.000e+00 00.000.000.00
10.000e+000.000e+000.000e+00 00.000e+000.000e+00 00.000.000.00
20.000e+000.000e+000.000e+00 00.000e+000.000e+00 00.000.000.00
32.268e-053.296e-059.321e-03 353.146e-022.848e-02152751100.000.000.00
42.092e-053.627e-051.124e-02 353.755e-023.565e-02152752100.000.000.00
52.558e-053.429e-051.178e-02 354.075e-023.974e-02152747100.000.000.00
62.196e-053.306e-051.229e-02 354.624e-024.557e-02152757100.000.000.00
72.502e-052.910e-051.266e-02 345.081e-024.876e-02152747100.000.000.00
AVG1.452e-052.071e-057.161e-03 212.585e-022.478e-029546962.500.000.00

When Looking at FIDs

slotrms_ra_err (deg)rms_dec_err (deg) rms_delta_mag (marcsec)number avg_angynea (arcsec)avg_angznea (arcsec) number_nea goodmarginalbad
00.000e+000.000e+001.845e-01 381.016e-021.195e-02152742100.000.000.00
10.000e+000.000e+001.771e-01 381.124e-021.352e-02152751100.000.000.00
20.000e+000.000e+001.838e-01 381.086e-021.323e-02152753100.000.000.00
30.000e+000.000e+000.000e+00 00.000e+000.000e+00 00.000.000.00
40.000e+000.000e+000.000e+00 00.000e+000.000e+00 00.000.000.00
50.000e+000.000e+000.000e+00 00.000e+000.000e+00 00.000.000.00
60.000e+000.000e+000.000e+00 00.000e+000.000e+00 00.000.000.00
70.000e+000.000e+000.000e+00 00.000e+000.000e+00 00.000.000.00
AVG0.000e+000.000e+006.817e-02 144.032e-034.839e-035728037.500.000.00

When looking at Monitor Stars

slotrms_ra_err (deg)rms_dec_err (deg) rms_delta_mag (marcsec)number avg_angynea (arcsec)avg_angznea (arcsec) number_nea goodmarginalbad
00.000e+000.000e+000.000e+00 00.000e+000.000e+00 00.000.000.00
10.000e+000.000e+000.000e+00 00.000e+000.000e+00 00.000.000.00
20.000e+000.000e+000.000e+00 00.000e+000.000e+00 00.000.000.00
30.000e+000.000e+000.000e+00 00.000e+000.000e+00 00.000.000.00
40.000e+000.000e+000.000e+00 00.000e+000.000e+00 00.000.000.00
50.000e+000.000e+000.000e+00 00.000e+000.000e+00 00.000.000.00
60.000e+000.000e+000.000e+00 00.000e+000.000e+00 00.000.000.00
70.000e+000.000e+000.000e+00 00.000e+000.000e+00 00.000.000.00
AVG0.000e+000.000e+000.000e+00 00.000e+000.000e+00 00.000.000.00

If you have any questions about this page, please contact swolk@cfa.harvard.edu.